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Brondell Circle Reverse Osmosis Water Filtration System

Best Whole House Reverse Osmosis System For Well Water

Brondell Circle Reverse Osmosis (RC100) Installation Guide

Reverse osmosis is a filtration process that passes water through a semi-permeable membrane to remove impurities. A whole house reverse osmosis system filters all of the water coming into your home, so every water source in your homeincluding your faucets, showers, and toiletswill have filtered water. This is an especially good option if you have well water, as it can remove contaminants like bacteria, viruses, and chemicals that may be in your water supply.

Benefits Of The Ro System

There are several benefits of this RO system that separate it from its competitors.

  • Replacement filters are costly
  • The entire system is quite large

First, the Brondell Water Filter comes with clear, easy to read instructions that make installation a breeze. It typically takes less than an hour to install. The faucet and hoses connect up easily per the instructions given, which makes installation stress-free and straightforward.

The water filtration systems design is sleek and slim, meant to fit in any space under the sink or on the counter without detracting from the design of your home The system is not bulky and is lighter than other RO systems, so moving it is quick and easy.

There is an ample amount of PEX tubing to extend and install under any sink. Likely, you wont need to buy a longer tube since the system comes with PEX tubing of a great length. This allows you to extend the tubing under your sink without needing to purchase extra materials.

One of the best features, of course, is the noticeable difference in water quality. The four filter system eliminates unwanted chemicals and minerals, making the water fresh and clear. The taste is comparable to Voss water, though it could be considered better!

The downsides of this water system are minimal. A significant concern is the cost of replacement for the water filters. Replacement of the four-filters will only be necessary every six months, and the RO membrane should be replaced every two years.

Brondell Circle Reverse Osmosis Water Filtration System Review

Thanks to its compact design, the Brondell Circle reverse osmosis water filtration system fits conveniently underneath a standard kitchen sink.

Because each line is color-coded, installation is quick and straightforward. The fact that it operates without electricity also makes this unit easy to install. Not only does that make this system cost-effective but also environmentally friendly.

The Brondell h2o RO system works efficiently regarding its water usage. For example, a competing reverse osmosis RO system wastes approximately four gallons of water for every gallon that it purifies. However, the Brondell h2o circle system only wastes around two gallons of water for every gallon it purifies.

  • Installation: Under the counter beneath a sink
  • Tank capacity: 6 liters
  • Dimensions: 9.25 in. x 16.5 in. x 13.75 in.
  • Weight: 14.6 pounds
  • Operating pressure: 40 120 PSI
  • Water feed temperature: 41º 95º F
  • Flow rate: up to 0.37 GPM
  • Warranty: one year


  • The Brondell RO system doesnt need electricity to run, which, in the long run, saves you money on energy costs.
  • This reverse osmosis system has an efficient wastewater production of 2.1 gallons for every gallon the unit purifies.
  • Its compact design makes this system easy to install and change its filters.
  • You dont need any special tools to install this system or replace its filters.


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What Customers Are Saying:

“I purchased this unit after being told my water had high sediments by a water testing company. The serviceman wanted to install a conventional unit under my kitchen sink for over two grand! Then I found this lovely-looking version through Home Depot’s website for a great price. It was super easy to install, took me about less than an hour . Now my water tastes much better and I don’t have to buy any more bottled water to drink. Also, I love the design of this compared to other RO Filter Systems that have all the filters exposed and going in several directions. – Mario G.”

“We had been purchasing 2 cases of bottled water a week. We switched to the RO system and we LOVE it! Water tastes crisp and clean. The system will pay for itself JUST on bottled water alone in 6 months. Additionally, we are so happy we arent producing all that trash. We recently bought a nugget ice maker that now using RO water avoids us from cleaning as often or needing a filter. Last, my niece had been using distilled baby water when making bottles at our house. She now uses our RO water. So many benefits with no downside in my book. It was SUPER easy to install. I think I had it done in 20 minutes. – Ali B.”

“My husband bought this for our house and we all love it! It was easy to install and the water tastes so clean! Its saving us so much money not having to buy bottles not to mention being more environmentally friendly! Would definitely recommend this! – Sam C.”

Easy Installation Water Tastes Great

Brondell H2O+ Circle Reverse Osmosis Water Filtration System

The compact design is great, and the install was overall easy. The installation video is very helpful. The only issue I had was after waiting 40 minutes and then drain the tank, the water just trickled out like others have posted. I assumed that there was still air in the lines so I opened and closed the faucet a few times waiting a few minutes in between the cycles. Suddenly you could hear the wastewater begin to drain out… I did not hear this at all during the 40 minute wait time.. so it actually wasnt filling the first time around. So, I waited another 40 minutes and the waste water sound stopped the tank was full! I opened the faucet and it flowed properly! All is good now. Its been working perfectly since and water tastes great.

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Great Tasting Water But Terribly Slow

The water from this unit tastes simply perfect! Unfortunately the flow rate is insanely slow. If youre filling a big glass, best to put the glass in the sink, turn on the faucet, and do a small chore. If you dont mind an exceptionally slow fill, but enjoy exceptionally delicious water, this is the perfect system for you.

Brondell H2o+ Circle Water Saving Reverse Osmosis Water Filter System Wqa Gold Seal Certified

  • WATER SAVING SMART TECHNOLOGY – up to 10 times more efficient than conventional RO systems
  • DESIGNER CHROME FAUCET with integrated LED filter change indicator
  • SPACE SAVING COMPACT DESIGN leaves plenty of room for under sink storage
  • QUICK CHANGE TWIST AND SEAL FILTERS, non-electric design
  • WQA GOLD SEAL CERTIFIED four-stage reverse osmosis filtration for NSF/ANSI Stds 42, 53, 58, and 372
Product Specifications
13.8 x 9.2 x 16.5 inches
Special Features
Specification for this product family
Brand Name
  • Batteries :1 CR2 batteries required.
  • Is Discontinued By Manufacturer :No
  • Product Dimensions :34.93 x 23.5 x 41.91 cm 6.62 Kilograms
  • Date First Available :March 31 2018
  • Manufacturer :Brondell
  • Place of Business :SAN FRANCISCO, CA, 94103 US
  • ASIN :B011T65J9A

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A Perfect Ro System With Better Space Management

This is one of the best RO System that I explored that fullfills all my needs with better space management.Took me less than an hour to go through the installation video and fixing it and it is super easy. Leaves lot of space under the kitchen sink unlike other RO systems that occupies entire side of the space.The LED indicator on the faucet for filter change avoids to put reminders to change the filter.Highly recommended.

Very good water purifier system. It has made it so easy to drink clean water.

very simple installationeasy to usewhole family love it.

Our Brondell Circle Reverse Osmosis Review

Brondell Circle Reverse Osmosis

After investigating current info and examining this system ourselves, were excited to share our thoughts and award the Circle a final score. I broke our review into two parts: our likes and our dislikes.


  • There are enough complaints about the low flow rate to make it worth mentioning and noting before you buy.
  • We love reverse osmosis because of how powerful the filtration is, however, we prefer reverse osmosis with remineralization. You may want to consider installing an inline mineral filter cartridge as the final stage in your system to make your RO water alkaline. Why do this? Most people prefer the taste of alkaline water, and demineralized RO water is usually slightly acidic.
  • The 40-minute waiting period between tank refills may be a dealbreaker for large families or if you need more water on demand.
  • 4-stage filtration is adequate, yet its fewer stages than quality RO systems on the market that cost less. If you have iron-rich well water and need heavy sediment reduction, there are better options with more frequent sediment filter changes than every 6 months.


Final Score: 8/10

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Overview Of The Brondell H2o+ Circle

The Brondell H2O+ Circle looks very different from the vast majority of reverse osmosis filter systems.

With this system, everything is enclosed in an attractive box. This reduces the number or exposed tubes under your sink and it looks a lot tidier. A lot of people are drawn to its elegant looks, but remember that it still lives under your sink.

In addition to having a novel look, the Brondell H2O+ is also highly efficient when it comes to water usage. While most RO systems make about 4 gallons of waste water for every gallon of pure water produced, the H2O+ makes only a little over 2 gallons of waste water for every gallon of pure water produced. The system has what Brondell calls an intelligent smart valve that along with a circular reservoir, helps eliminate back pressure.

The system uses a 4 stage filtering process to produce pure water:

Brondell provides stickers for your filters that remind you when to change them. Another innovation that this system has is an LED indicator light on the faucet that lights up when you need to change your filters. This could be very useful as the quality of the feed water is ultimately what influences when the filters need changing. The better the water that flows into the system the less frequently the filters need replacing.

Reliance Water Purifiers: Water Filtration And Treatment Solutions For The Ultimate In Quality Water

Water filtration and treatment can enhance your water quality at home and contribute to your day-to-day comfort & hydration. Reliance offers various types of water purification options, including:

Exclusive offer for Reliance Rental customers: SAVE $5 per month off the rental of select Water Softeners, Reverse Osmosis Systems and Water Filters.**

Read more +

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Related Products & Accessories:

Have a question about this product?Can I install this with my own faucet? My kitchen counter does not have a hole for a separate faucet so I am planning to install a Dual Kitchen faucet with a built-in filter faucet, so I won’t be able to use the provided faucet.Answer:How do we change the water filter?Answer:Does the Brondell Circle Reverse Osmosis filter refrigerator water and ice?Answer:

Technology For Less Waste Water

Brondell H2O+ Circle Reverse Osmosis Water Filtration System

Most reverse osmosis water filters waste a significant amount of water. For example, some competing models may waste between five and 24 gallons of water for every gallon of water produced. That reality means its crucial to find a system that features efficiency.

Brondell water filters dont disappoint in this area. Instead of wasting up to 24 gallons of water, this reverse osmosis filter reduces that waste and delivers pure water to your home. In doing so, this RO filter is saving you money from increased water efficiency and no need for electricity.

This units design makes it a better choice because it doesnt waste a significant amount of water. Instead, it only produces just over two gallons of waste for every gallon when filtering. That makes the Brondell H2O Circle reverse osmosis 10 times more efficient than electric pumps or other conventional RO systems.

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Circle Reverse Osmosis Under Sink WaterFiltration System.

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The water is pristine and the taste is so good. I cant get enough! Katy

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Brondell Pro Sanitizing Air Purifier with AG+ Technologyby Aurabeat

Circle Reverse Osmosis Under Sink Water Filtration System.

Ive never been happier with a filtration system.

The water is pristine and the taste is so good. I cant get enough! Katy

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Like a mini-spa experience every time you go to the bathroomthe best household product to boost the simple pleasures in life! Aaron

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Worth every penny.

Circle Reverse Osmosis Under Sink Water Filtration System.

Love it.

Brondell Circle Reverse Osmosis Review

Disclosure: As an Amazon Associate I earn from qualifying purchases.

Are you battling heavily-chlorinated municipal water or iron-rich well water? Perhaps youd like to remove fluoride, chloramines, and everything under the sun from your tap water? Welcome to our Brondell Circle Reverse Osmosis Review. Reverse osmosis or RO systems are an excellent choice for removing everything from your water.

Standard under-sink RO systems usually come with a filtered water tank. The Brondell Circle is a unique tankless system that holds your filtered water inside the unit. Does that make it better? Thats what youre about to find out in our review.

Lets start by going over the core features of the Brondell H2O+ Circle RO Water Filter before checking out what to expect from this system.

After that, we share our review and final score for the Circle. By the end, youll know for sure if the Circle is for you or if there are better options for your home.

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Super Easy Diy Installation

I installed this filter easily under my kitchen sink, and the package included everything needed to do the job. With its exceptional modern-day features like auto-flushing and twist and seal filter changes, Brondell is an ideal choice for those who are very specific about saving space, water, money, and power.

I am glad I found this all-in-one champ for my familys drinking water needs. The filter has an aesthetic design with a quick-connect feature. It operates at the maximum pressure of 120 psi. The minimum requirement for pressure is suggested to be 40 psi. It would help if you stayed within the range to avoid the hassle of leakage while enjoying appropriate water flow.

We get healthy, fresh, and clean drinking water every day, and everyone in my family loves the taste of filtered water. I love the freshness that takes me to another world. It is programmed to work wonders while treating bad taste, odors, heavy metals, and other tiny health enemies.

I sum up my life-changing experience of using this marvelous Brondell Water Filter System product. Lets dive in:

Brondell Pros

  • Easy installation

Brondell Cons

  • Water flows from the faucet can be slow .
  • Some customer reviews report replaceable parts.
  • Only some small parts are fragile and are likely to break off .

Water Looks Cloudy After Installation

How to install Brondell H2O Circle Reverse Osmosis Water Filtration System

When water filters are first installed, it is common to see tiny bubbles in the filtered water. With enough bubbles, the water can appear somewhat cloudy. This is due to trapped air inside of the carbon pores of the filters. These bubbles are released over time and will quickly reduce in a day or two, when more water is filtered through the system.

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A More Efficient System For Sustainably Filtered Water

Circles sleek, high-capacity design includes patented, water-saving technology that makes it up to 10x more efficient than conventional reverse osmosis systems. Over the life of the product, Circle pays for itself in water savings compared to traditional RO.

A unique, flexible reservoir and patented Smart Valve reduce wastewater output by helping to eliminate back pressurethe biggest source of waste in RO systems.

Circles surprisingly small footprint leaves storage space available under your counter. Easy to install and maintain, it’s an elegant and efficient reverse osmosis system for the modern, sustainable home.

Apec Top Tier Fast Flow High Output 90 Gpd Ultra Safe Reverse Osmosis Drinking

  • High performance system, WQA Gold Seal certified to guarantee contaminant free pure water
  • Unlimited supply of bottled quality drinking water by removing chlorine, taste, odors and up to 99% of harmful contaminants found in tap water
  • Solid metal framed construction that prevents kinks and leaks in tubing damage, while also prohibiting vibration and noises
  • Simple and organized, RO-Hi is designed to make identifying and replacing filters intuitive and easy
  • Eco-friendly system with water saving design which includes low rinse water ratio and automatic shut off feature

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Drinking Water Filter System

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Product Details

Feature : Supreme quality designed, and assembled in USA to guarantee water safety & your health.Only technology to remove up to 99% of contaminants including arsenic, chlorine, lead, fluoride, heavy metals, bacteria, virus and 1000 contaminants.

Provide unlimited clean, refreshing crisp tasting water superior to bottled water.WQA certified manufacturer guaranteeing trouble free, noise-free system for long lasting, dependable, pure drinking water.

The size of the tank included with the system is 11 x 11 x 15.The system along with its tank, is design to fit a standard kitchen cabinet.High quality Quick Connect fittings, requires no extra lock clips or steps to seal leak.


Reviews From Real Customers

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